Speaker Normalization Using Cortical Strip Maps: A Neural Model for Steady State vowel Categorization

Auditory signals of speech are speaker-dependent, but representations of language meaning are speaker-independent. The transformation from speaker-dependent to speaker-independent language representations enables speech to be learned and understood from different speakers. A neural model is presented that performs speaker normalization to generate a pitch-independent representation of speech sounds, while also preserving information about speaker identity. This speaker-invariant representation is categorized into unitized speech items, which input to sequential working memories whose distributed patterns can be categorized, or chunked, into syllable and word representations. The proposed model fits into an emerging model of auditory streaming and speech categorization. The auditory streaming and speaker normalization parts of the model both use multiple strip representations and asymmetric competitive circuits, thereby suggesting that these two circuits arose from similar neural designs. The normalized speech items are rapidly categorized and stably remembered by Adaptive Resonance Theory circuits. Simulations use synthesized steady-state vowels from the Peterson and Barney [J. Acoust. Soc. Am. 24, 175-184 (1952)] vowel database and achieve accuracy rates similar to those achieved by human listeners. These results are compared to behavioral data and other speaker normalization models.National Science Foundation (SBE-0354378); Office of Naval Research (N00014-01-1-0624

Speaker Normalization Using Cortical Strip Maps: A Neural Model for Steady State Vowel Identification

Auditory signals of speech are speaker-dependent, but representations of language meaning are speaker-independent. Such a transformation enables speech to be understood from different speakers. A neural model is presented that performs speaker normalization to generate a pitchindependent representation of speech sounds, while also preserving information about speaker identity. This speaker-invariant representation is categorized into unitized speech items, which input to sequential working memories whose distributed patterns can be categorized, or chunked, into syllable and word representations. The proposed model fits into an emerging model of auditory streaming and speech categorization. The auditory streaming and speaker normalization parts of the model both use multiple strip representations and asymmetric competitive circuits, thereby suggesting that these two circuits arose from similar neural designs. The normalized speech items are rapidly categorized and stably remembered by Adaptive Resonance Theory circuits. Simulations use synthesized steady-state vowels from the Peterson and Barney [J. Acoust. Soc. Am. 24, 175-184 (1952)] vowel database and achieve accuracy rates similar to those achieved by human listeners. These results are compared to behavioral data and other speaker normalization models.National Science Foundation (SBE-0354378); Office of Naval Research (N00014-01-1-0624

KInNeSS: A Modular Framework for Computational Neuroscience

Making use of very detailed neurophysiological, anatomical, and behavioral data to build biological-realistic computational models of animal behavior is often a difficult task. Until recently, many software packages have tried to resolve this mismatched granularity with different approaches. This paper presents KInNeSS, the KDE Integrated NeuroSimulation Software environment, as an alternative solution to bridge the gap between data and model behavior. This open source neural simulation software package provides an expandable framework incorporating features such as ease of use, scalabiltiy, an XML based schema, and multiple levels of granularity within a modern object oriented programming design. KInNeSS is best suited to simulate networks of hundreds to thousands of branched multu-compartmental neurons with biophysical properties such as membrane potential, voltage-gated and ligand-gated channels, the presence of gap junctions of ionic diffusion, neuromodulation channel gating, the mechanism for habituative or depressive synapses, axonal delays, and synaptic plasticity. KInNeSS outputs include compartment membrane voltage, spikes, local-field potentials, and current source densities, as well as visualization of the behavior of a simulated agent. An explanation of the modeling philosophy and plug-in development is also presented. Further developement of KInNeSS is ongoing with the ultimate goal of creating a modular framework that will help researchers across different disciplines to effecitively collaborate using a modern neural simulation platform.Center for Excellence for Learning Education, Science, and Technology (SBE-0354378); Air Force Office of Scientific Research (F49620-01-1-0397); Office of Naval Research (N00014-01-1-0624

Selected research on incident reporting systems in health and social services: rapid health technology assessment - mapping

Source at https://www.fhi.no/.En nylig utført systematisk oversikt viste at det ikke finnes forskning som har undersøkt effekten av nasjonale og regionale, generelle melde- og varselordninger på alvorlige hendelser i helse- og omsorgstjenesten. Derfor var det hensiktsmessig å undersøke forskning som har sett på tilgrensende problemstillinger. Formålet med dette arbeidet var å kartlegge studier om mulige sammenhenger mellom generelle melde- og varselordninger for uønskede hendelser i helse- og omsorgstjenesten og pasientnære- og systemutfall relatert til pasientsikkerhet. Vi har utarbeidet en forenklet metodevurdering basert på syv studier rapportert i åtte publikasjoner ekskludert fra den systematiske oversikten omtalt over. Det var hovedsakelig tverrsnittstudier fra Danmark, New Zealand, Storbritannia og USA, publisert mellom 2007 og 2020. Med svært ulike problemstillinger, var det ikke mulig å dra linjer eller finne tematiske fellestrekk på tvers av studiene. Melde- og varselordningene var gjennomgående lite beskrevet. Vi fant til dels betydelige metodiske utfordringer i mange av publikasjonene. Denne kartleggingen viser at det er stor heterogenitet når det gjelder fremgangsmåter, problemstillinger, studiedesign, setting og utfall i studier som undersøker mulige sammenhenger mellom generelle melde- og varselordninger for uønskede hendelser i helse- og omsorgstjenesten og pasientnære- og systemutfall relatert til pasientsikkerhet. Tolkning, inkludert vurdering av overføringsverdien til norske forhold, av funnene i denne kartleggingen må gjøres med stor varsomhe

National and regional incident reporting systems for unwanted events in patient care: a systematic review

Source at https://www.fhi.no/.Alle virksomheter som yter helse- og omsorgstjenester skal arbeide systematisk for å redusere risiko for pasientskade som følge av tjenesteytelsen eller mangel på ytelse. Likevel oppstår uønskede hendelser av varierende alvorlighetsgrad. Anslagsvis rammer uønskede hendelser én av ti pasienter i norske sykehus. Norske virksomheter som yter helse- og omsorgstjenester plikter å varsle om alvorlige hendelser til Statens helsetilsyn og Undersøkelseskommisjonen (Ukom). Hensikten med denne systematiske oversikten var å undersøke effekten av nasjonale og regionale meldeog varselordninger på alvorlige hendelser i pasientbehandlingen i helse- og omsorgstjenesten. Funn fra oversikten var ment å informere Varselutvalgets utredning av varselordningene til Helsetilsynet og Ukom. Vi utførte systematiske litteratursøk i flere databaser, og identifiserte 3458 referanser. Vi benyttet maskinlæring i gjennomgangen av titler og sammendrag, slik at at vi leste de mest relevante først. De fleste referansene ble lest av to uavhengige medarbeidere, men de minst relevante ble kun lest av én medarbeider. Totalt 35 referanser ble lest i fulltekst, men ingen av disse møtte våre inklusjonskriterier. Vi kan dermed ikke si noe om effekten av nasjonale og regionale melde- og varselordninger på død, reinnleggelse eller andre alvorlige hendelser i helse- og omsorgstjenesten. Dette arbeidet har imidlertid identifisert et viktig kunnskapshull i form av mangel på forskning på dette området. Det er behov for veldesignede studier som evaluerer effekten av generelle nasjonale og/eller regionale melde- og varselordninger på pasientsikkerhetsutfall

The use of link workers in child welfare services: a systematic mapping review

Source at https://www.fhi.no/en/publ/2020/The-use-of-link-workers-in-child-welfare-services/Hensikten med denne systematiske kartleggingsoversikten er å klassifisere og beskrive forskning om linkarbeid i barnevernet og tilgrensende tjenester i saker som omhandler barn og familier med minoritetsbakgrunn. Linkarbeidere er personer som formidler mellom to parter og bistår med kultursensitivitet for å sikre god kommunikasjon og samarbeid mellom partene

Using the COMMVAC taxonomy to map vaccination communication interventions in Mozambique

Improved communication about childhood vaccination is fundamental to increasing vaccine uptake in low-income countries. Mozambique, with 64% of children fully vaccinated, uses a range of communication interventions to promote uptake of childhood immunisation.; Using a taxonomy developed by the 'Communicate to Vaccinate' (COMMVAC) project, the study aims to identify and classify the existing communication interventions for vaccination in Mozambique and to find the gaps.; We used a qualitative research approach to identify the range of communication interventions used in Mozambique. In-depth semi-structured interviews were carried out with key purposively selected personnel at national level and relevant documents were collected and analysed. These data were complemented with observations of communication during routine vaccination and campaigns in Nampula province. We used the COMMVAC taxonomy, which organises vaccination communication intervention according to its intended purpose and the population targeted, to map both routine and campaign interventions.; We identified interventions used in campaign and routine vaccination, or in both, fitting five of the seven taxonomy purposes, with informing or educating community members predominating. We did not identify any interventions that aimed to provide support or facilitate decision-making. There were interventions for all main target groups, although fewer for health providers. Overlap occurred: for example, interventions often targeted both parents and community members.; We consider that the predominant focus on informing and educating community members is appropriate in the Mozambican context, where there is a high level of illiteracy and poor knowledge of the reasons for vaccination. We recommend increasing interventions for health providers, in particular training them in better communication for vaccination. The taxonomy was useful for identifying gaps, but needs to be more user-friendly if it is to be employed as a tool by health service managers

Quality care in residential childcare institutions: a systematic scoping review

Source at https://www.fhi.no/publ/2020/gode-barnevernsinstitusjoner/Vi undersøkte hva forskning fra 2010-2019 sier om tiltak, metoder og strategier som skal legge til rette for god omsorg for barn og unge i barnevernsinstitusjoner

Perceptions and experiences of childhood vaccination communication strategies among caregivers and health workers in Nigeria: a qualitative study

Effective vaccination communication with parents is critical in efforts to overcome barriers to childhood vaccination, tackle vaccine hesitancy and improve vaccination coverage. Health workers should be able to provide information to parents and other caregivers and support them in reaching decisions about vaccinating their children. Limited information exists regarding the perceptions of caregivers and health workers on the vaccination communication strategies employed in Nigeria. This study, which forms part of the 'Communicate to vaccinate' (COMMVAC) project, aims to explore the perceptions and experiences of caregivers and health workers in Nigeria on vaccination communication strategies implemented in their settings.; We conducted the study in two States: Bauchi in Northern Nigeria and Cross River in the south. We carried out observations (n = 40), in-depth interviews (n = 14) and focus group discussions (FGDs) (n = 12) amongst 14 purposively selected health workers, two community leaders and 84 caregivers in the two states. We transcribed data verbatim and analysed the data using a framework analysis approach.; Caregivers were informed about vaccination activities through three main sources: health facilities (during health education sessions conducted at antenatal or immunization clinics); media outlets; and announcements (in churches/mosques, communities and markets). Caregivers reported that the information received was very useful. Their preferred sources of information included phone text messages, town announcers, media and church/mosque announcements. Some caregivers perceived the clinic environment, long waiting times and health worker attitudes as barriers to receiving vaccination information.When delivering communication interventions, health workers described issues tied to poor communication skills; poor motivation; and attitudes of community members, including vaccine resistance.; Communication about vaccination involves more than the message but is also influenced by the environment and the attitudes of the deliverer and receiver. It is pertinent for health policy makers and programme managers to understand these factors so as to effectively implement communication approaches